EP 0095855 B1 19870408 - PROCESS FOR POLYMERIZING ETHYLENE
Title (en)
PROCESS FOR POLYMERIZING ETHYLENE
Publication
Application
Priority
- JP 8998482 A 19820528
- JP 19889282 A 19821115
Abstract (en)
[origin: EP0095855A1] Ethylene or a mixture of ethylene with an alpha -olefin having at least 3 carbon atoms is polymerized under a pressure of at least 200 kg/cm<2> at a temperature of at least 125 DEG C in the presence of a catalyst formed from (A) a solid catalyst component and (B) an organic aluminum compound of the formula: R<4>nAIX<2>3-n wherein R<4> is C1-6 alkyl, X<2> is halogen and n is from 1.5 to 3. The solid catalyst component is prepared by (1) reacting an aluminum halide with a silicon compound of the formula: R<1>mSi(OR<2>)4-m wherein R<1> is C1-8 alkyl or phenyl, R<2> is C1-8 alkyl and m is 0, 1, 2 or 3, (2) reacting the obtained product with a Grignard compound of the formula: R<3>MgX<1> wherein R<3> is C1-8 alkyl and X<1> is halogen, to form a carrier, and then, (3) contacting the carrier with a titanium tetrahalide.
IPC 1-7
IPC 8 full level
C08F 4/02 (2006.01); C08F 10/00 (2006.01); C08F 10/02 (2006.01)
CPC (source: EP KR)
C08F 4/02 (2013.01 - KR); C08F 10/00 (2013.01 - EP); C08F 10/02 (2013.01 - KR)
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0095855 A1 19831207; EP 0095855 B1 19870408; DE 3370803 D1 19870514; KR 840004911 A 19841031; KR 860000592 B1 19860517
DOCDB simple family (application)
EP 83302809 A 19830517; DE 3370803 T 19830517; KR 830002352 A 19830527